Lock thumbwheel

Abstract

The present application discloses a locking thumb wheel, which includes a housing and a controller. The housing defines an installation space, which forms an opening on the outer peripheral wall of the housing. A thumb wheel is pivotally mounted in the housing, with the end of the thumb wheel passing through the opening. An angle detection member and a touch sensing member are provided in the housing. The angle detection member is used to detect the rotation angle of the thumb wheel. A touch area opposite to the touch sensing member is provided on the outer peripheral wall of the housing. When the touch area is touched, the touch sensing member is triggered. Both the angle detection member and the touch detection member are communicatively connected to the controller. The controller is used to output or stop outputting a control signal based on a detection signal from the angle detection member. The controller is also used to continuously output a control signal based on a detection signal from the touch sensing member and a detection signal from the angle detection member. The operator does not need to maintain the thumb wheel at a preset angle for a long time, thereby reducing the operator's fatigue in operating the thumb wheel.

Description

Technical Field

[0001] The present application relates to the field of thumbwheel devices, and in particular to a locking thumbwheel. Background Art

[0002] In the related art, the excavator is provided with a thumb wheel, and the operator controls the excavator accessories to work by turning the thumb wheel. However, for special accessories such as breakers, vibratory rammers, rock drills, etc., the special accessories need to continue working at a preset speed and force. The operator needs to turn the thumb wheel to a preset angle and maintain the thumb wheel at the preset angle for a long time. Such operation method can easily cause fatigue to the operator and reduce the user experience of the thumb wheel. Summary of the Invention

[0003] In order to reduce the operator's fatigue when operating the thumb wheel and improve the user experience of the thumb wheel, the present application provides a locking thumb wheel.

[0004] The present application provides a locking thumb wheel that adopts the following technical solution:

[0005] A locking thumb wheel comprises: a shell, the shell defining an installation space, the installation space forming an open opening on the outer peripheral wall of the shell, a thumb wheel pivotally mounted within the shell, an end of the thumb wheel passing through the open opening, an angle detection member and a touch sensing member provided within the shell, the angle detection member being used to detect the rotation angle of the thumb wheel, a touch area being provided on the outer peripheral wall of the shell opposite to the touch sensing member, and the touch sensing member being triggered when the touch area is touched.

[0006] The angle detection element and the touch detection element are both communicatively connected to the controller, and the controller is used to output or stop outputting a control signal according to the detection signal of the angle detection element. The controller is also used to continuously output the control signal according to the detection signal of the touch sensing element and the detection signal of the angle detection element.

[0007] By adopting this technical solution, the angle detection element detects the rotation angle of the thumb wheel. When the thumb wheel is rotated, the touch sensor element is triggered, and the controller continuously outputs a control signal based on the detection signal from the angle detection element and the detection signal from the touch sensor element. Compared with the existing technology, the operator does not need to maintain the thumb wheel at a preset angle for a long time, which can reduce the operator's fatigue when operating the thumb wheel, thereby improving the user experience of the thumb wheel.

[0008] Preferably, the dial is provided with a magnet, the angle detection member is constructed as a Hall sensor, the angle detection member is opposite to the magnet, and the angle detection member is triggered when the dial is turned.

[0009] By adopting the above technical solution, the magnet has a magnetic field. When the dial is rotated, the dial drives the magnet to rotate, and the magnetic field of the magnet changes position. The angle detection component uses the Hall effect to detect the magnetic field of the magnet and generate a detection signal, thereby achieving the technical effect of the angle detection component detecting the rotation angle of the dial.

[0010] and a second stop portion and a second stop portion are located on the other side of the pivot protrusion, and the second stop portion and the second stop portion are located on the other side of the pivot protrusion.

[0011] By adopting the above technical solution, the thumbwheel drives the first stop portion to rotate downward and drives the second stop portion to rotate upward, the first stop portion drives the first driving arm to bend and deform downward, the first driving arm separates from the first limiting portion, the second driving arm is limitedly engaged with the second limiting portion, and the second driving arm separates from the second stop portion. After the operator's hand separates from the thumbwheel, the first driving arm drives the first stop portion to drive the thumbwheel to rotate backward to the initial position, thereby achieving the technical effect of resetting the thumbwheel.

[0012] Preferably, the connecting seat is provided with a side wall of the pivot protrusion is provided with a first pivot hole, and the side wall of the connecting seat away from the pivot protrusion is provided with a second pivot hole, the pivot protrusion, the first pivot hole and the second pivot hole are all coaxially arranged, the thumb wheel includes a thumb wheel body and a cover body, the side wall of the cover body is provided with a first pivot shaft, the first pivot shaft is pivotally connected to the first pivot hole, the side wall of the thumb wheel body is provided with a second pivot shaft, the second pivot shaft is pivotally connected to the second pivot hole, the thumb wheel body and the cover body are connected and cooperated, the reset spring is clamped between the cover body and the connecting seat, and the thumb wheel body is provided with the first stop portion and the second stop portion.

[0013] By adopting the above technical solution, the first pivot shaft is pivotally connected to the first pivot hole, and the second pivot shaft is pivotally connected to the second pivot hole, thereby achieving the technical effect of pivotally connecting the thumb wheel to the connecting base. In addition, the return spring is limitedly engaged with both the cover body and the left side wall of the connecting base, thereby preventing the return spring from separating from the connecting base and preventing the return spring from being unable to drive the thumb wheel to reset, thereby improving the reliability of locking the thumb wheel.

[0014] Preferably, a guide groove is provided on the side wall of the thumbwheel body close to the cover body, and a guide portion is provided on the end wall of the cover body close to the thumbwheel body, and the guide groove and the guide portion are in guiding cooperation.

[0015] By adopting the above technical solution, when the dial body and the cover body are installed on the connecting seat, the guide groove guides the cover body through the guide part, thereby reducing the difficulty of connecting the dial body and the cover body, and further improving the installation efficiency of the dial body and the cover body.

[0016] Preferably, the side wall of the connecting seat is provided with a snap-fitting protrusion, and the side wall of the shell is provided with a snap-fitting hole, and the snap-fitting protrusion and the snap-fitting hole are snap-fitted.

[0017] By adopting the above technical solution, the connecting seat extends into the shell and the clamping protrusion extends into the clamping hole to be clamped and matched with the clamping hole, thereby achieving the technical effect of fixedly connecting the connecting seat and the shell.

[0018] Preferably, there are a plurality of the clamping protrusions and the clamping holes, and the plurality of the clamping protrusions and the plurality of the clamping holes are arranged at intervals along the circumferential direction of the shell, and the plurality of the clamping protrusions and the plurality of the clamping holes are arranged in a one-to-one correspondence.

[0019] By adopting the above technical solution, by providing multiple snap-in protrusions and multiple snap-in holes, when the connecting base is installed in the shell, the multiple snap-in protrusions extend into the corresponding snap-in holes, thereby improving the connection reliability between the connecting base and the shell, and preventing the connecting base from detaching from the shell, causing the operator to be unable to drive the dial to rotate, thereby improving the working reliability of locking the thumb dial.

[0020] Preferably, the top wall of the shell is provided with a third stop portion, the outer peripheral wall of the shell is provided with a clamping portion opposite to the third stop portion, and the clamping portion is located on the side of the third stop portion close to the bottom wall of the shell, and the clamping portion includes a first clamping arm and a second clamping arm, both of which are suitable for elastic deformation, the top walls of the first clamping arm and the second clamping arm are connected and cooperated, and there is an angle between the first clamping arm and the second clamping arm, which is suitable for fixing the shell to the installation plane through the first clamping arm and the third stop portion.

[0021] By adopting the above technical solution, the mounting plane first abuts against the side wall of the second clamping arm away from the shell, and then the mounting plane drives the second clamping arm to move toward the inside of the shell, and the second clamping arm drives the first clamping arm to move toward the inside of the shell. When the mounting plane is located above the connection between the first clamping arm and the second clamping arm, the mounting plane is separated from the second clamping arm, and driven by elastic force, the second clamping arm drives the first clamping arm to move toward the outside of the shell. The side wall of the first clamping arm away from the shell abuts against and limits the mounting plane, and the lower end wall of the third abutting portion abuts against and limits the mounting plane, thereby achieving the technical effect of fixing the shell to the mounting plane.

[0022] Preferably, there are a plurality of the clamping portions, and the plurality of the clamping portions are spaced apart along the circumferential direction of the shell.

[0023] By adopting the above technical solution and providing a plurality of clamping parts, the plurality of clamping parts can improve the connection reliability between the housing and the mounting plane, thereby preventing the housing from being separated from the mounting plane.

[0024] Preferably, an outer wall of the shell is provided with an avoidance hole, and an indicator light opposite to the avoidance hole is provided in the shell. The indicator light is communicatively connected with the controller. When the controller continuously outputs the control signal, the controller controls the indicator light to light up, and when the controller does not continuously output the control signal, the controller controls the indicator light to go out.

[0025] By adopting the above technical solution, the operator can determine whether the controller continues to output the control signal by observing whether the indicator light is on. The operator does not need to observe whether the excavator attachment continues to work to determine whether the controller continues to output the control signal, thereby reducing the operator's workload and improving the user experience of locking the thumb wheel.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The angle of the thumbwheel is detected by an angle detector. When the thumbwheel is rotated, the touch sensor is triggered, and the controller continuously outputs a control signal based on the detection signals from the angle detector and the touch sensor. Compared with existing technologies, the operator does not need to maintain the thumbwheel at a preset angle for a long time, thereby reducing operator fatigue when operating the thumbwheel and improving the user experience of the thumbwheel.

[0028] 2. The pivotal connection between the first pivot shaft and the first pivot hole, and the pivotal connection between the second pivot shaft and the second pivot hole, achieves the technical effect of pivotally connecting the thumb wheel to the connecting base. Furthermore, the return spring is engaged with both the cover and the left side wall of the connecting base, preventing the return spring from separating from the connecting base and preventing the return spring from driving the thumb wheel to reset, thereby improving the reliability of locking the thumb wheel.

[0029] 3. When the thumbwheel body and the cover body are installed on the connecting seat, the guide groove guides the cover body through the guide part, thereby reducing the difficulty of connecting the thumbwheel body and the cover body, and further improving the installation efficiency of the thumbwheel body and the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of a locked thumb wheel according to an embodiment of the present application;

[0031] Figure 2 is a schematic diagram of a partial structure of a locking thumb wheel according to an embodiment of the present application;

[0032] Figure 3 is a cross-sectional view of a locking thumb wheel according to an embodiment of the present application;

[0033] Figure 4 is a cross-sectional view from another angle of the locking thumb wheel according to an embodiment of the present application;

[0034] Figure 5 It is a cross-sectional view from another angle of the locking thumb wheel according to the embodiment of the present application.

[0035] Description of reference numerals:

[0036] 100. Lock the thumb wheel;

[0037] 1. Housing; 11. Installation space; 12. Opening; 13. Dial; 131. Magnet; 132. First stop portion; 133. Second stop portion; 134. Dial body; 1341. Second pivot axis; 1342. Guide groove; 135. Cover; 1351. First pivot axis; 1352. Guide portion; 14. Angle detection member; 15. Touch sensing member; 16. Connecting seat; 161. Pivoting protrusion; 162. First limiting portion; 163. Second limiting portion; 164. First pivot hole; 165. Second pivot hole; 166. Clamping protrusion; 17. Clamping hole; 18. Third stop portion; 19. Clamping portion; 191. First clamping arm; 192. Second clamping arm; 20. Avoidance hole; 21. Indicator light; 22. Touch area

[0038] 3. Return spring; 31. First drive arm; 32. Second drive arm. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0040] The embodiment of the present application discloses a locking thumb wheel 100 .

[0041] Reference Figure 1-Figure 3 The locking thumb wheel 100 according to the embodiment of the present application comprises: a housing 1 and a controller. The housing 1 defines an installation space 11, and the installation space 11 forms an opening 12 on the outer peripheral wall of the housing 1. Specifically, along the height direction of the housing 1, the height direction of the housing 1 can be up to Figure 1 In the up and down directions, the open opening 12 is located at the upper end wall of the shell 1, and a dial wheel 13 is pivotally mounted in the shell 1. The upper end of the dial wheel 13 passes through the open opening 12. An angle detection member 14 and a touch sensing member 15 are provided in the shell 1. The angle detection member 14 is used to detect the rotation angle of the dial wheel 13. A touch area 22 opposite to the touch sensing member 15 is provided on the outer peripheral wall of the shell 1. Specifically, the touch area 22 is located at the upper end wall of the shell 1. When the touch area 22 is touched by the hand of the operator, the touch sensing member 15 is triggered.

[0042] The angle detection element 14 and the touch detection element are both connected to the controller for communication. The controller is used to output or stop outputting control signals according to the detection signal of the angle detection element 14 . The controller is also used to continuously output control signals according to the detection signal of the touch sensing element 15 and the detection signal of the angle detection element 14 .

[0043] Specifically, along the first direction of the housing 1, the first direction of the housing 1 may refer to Figure 1 In the forward and backward directions, the operator can drive the dial 13 to rotate forward or backward. When the touch sensing element 15 is not triggered, the operator drives the dial 13 to rotate to a preset angle. The angle detection element 14 detects the rotation angle of the dial 13 and generates a detection signal. The controller outputs a control signal according to the detection signal of the angle detection element 14.

[0044] When the operator drives the dial 13 to rotate to a preset angle and the touch sensor 15 is triggered, the controller continuously outputs a control signal based on the detection signal of the angle detection element 14. After the controller continuously outputs the control signal, the operator's hand can be separated from the dial 13. The operator does not need to use his hand to maintain the dial 13 at the preset angle for a long time to control the excavator attachment to work for a long time.

[0045] After the controller continuously outputs the control signal, the operator drives the dial wheel 13 to rotate in the opposite direction, and the controller stops continuously outputting the control signal according to the detection signal of the angle detection component 14. Specifically, when the operator drives the dial wheel 13 to rotate forward and the controller continuously outputs the control signal, the operator drives the dial wheel 13 to rotate backward, the angle detection component 14 detects the rotation angle of the dial wheel 13 and generates a detection signal, and the controller stops continuously outputting the control signal according to the detection signal of the angle detection component 14.

[0046] Furthermore, when the controller continuously outputs the control signal, the operator can drive the dial 13 to rotate in the same direction, and the rotation angle of the dial 13 is greater than the rotation angle of the dial 13 corresponding to the control signal, and the controller stops continuously outputting the control signal according to the detection signal of the angle detection component 14. Specifically, when the operator drives the dial 13 to rotate forward and the controller continuously outputs the control signal, the operator drives the dial 13 to rotate forward, and the rotation angle of the dial 13 is greater than the rotation angle of the dial 13 corresponding to the control signal, the angle detection component 14 detects the rotation angle of the dial 13 and generates a detection signal, and the controller stops continuously outputting the control signal according to the detection signal of the angle detection component 14.

[0047] It should be noted that the control signal is used to control the operation of the excavator attachment, and when the dial 13 is rotated to different angles, the controller transmits different control signals. In some specific embodiments, the control signal can be used to control the movement speed of the excavator attachment. When the rotation angle of the dial 13 increases, the movement speed of the excavator attachment increases. In other specific embodiments, the control signal can be used to control the excavation force of the excavator attachment. When the rotation angle of the dial 13 increases, the excavator attachment increases the excavation force. In addition, the rotation direction of the dial 13 can also be used to control the movement direction of the excavator attachment.

[0048] In some specific embodiments, the angle detection element 14 may be a rotary encoder, and the touch sensing element 15 may be a capacitive touch sensor, but the present application is not limited thereto. The angle detection element 14 may be a potentiometer, etc., and the touch sensing element 15 may be a resistive touch sensor, etc.

[0049] Thus, the angle detection element 14 detects the rotation angle of the thumb wheel 13. When the thumb wheel 13 is rotated, the touch sensor 15 is triggered, and the controller continuously outputs a control signal based on the detection signals from the angle detection element 14 and the touch sensor 15. Compared with the existing technology, the operator does not need to maintain the thumb wheel 13 at a preset angle for a long time, thereby reducing the operator's fatigue when operating the thumb wheel 13, and further improving the user experience of the thumb wheel 13.

[0050] Reference Figure 3In some embodiments of the present application, the dial 13 is provided with a magnet 131, and the angle detection member 14 is constructed as a Hall sensor. The angle detection member 14 is opposite to the magnet 131, and the angle detection member 14 is triggered when the dial 13 is turned.

[0051] Specifically, the magnet 131 has a magnetic field. When the dial 13 is rotated, the dial 13 drives the magnet 131 to rotate, and the magnetic field of the magnet 131 changes position. The angle detection component 14 uses the Hall effect to detect the magnetic field of the magnet 131 and generate a detection signal, thereby achieving the technical effect of the angle detection component 14 detecting the rotation angle of the dial 13.

[0052] Reference Figure 3 and Figure 4 In some embodiments of the present application, the locking thumb wheel 100 may further include: a return spring 3, a connecting seat 16 is fixedly connected to the shell 1, and a side wall of the connecting seat 16 is provided with a pivot protrusion 161, a first limiting portion 162 and a second limiting portion 163. Specifically, along the second direction of the shell 1, the second direction of the shell 1 can refer to Figure 1 In the left and right directions, the pivot protrusion 161, the first limiting portion 162 and the second limiting portion 163 are all located on the left side wall of the connecting seat 16. Along the height direction of the shell 1, the dial 13 is pivotally installed on the upper end of the connecting seat 16. The dial 13 is provided with a first stop portion 132 and a second stop portion 133. Along the first direction of the shell 1, the first stop portion 132 and the first limiting portion 162 are located on one side of the pivot protrusion 161, and the second stop portion 133 and the second limiting portion 163 are located on the other side of the pivot protrusion 161. Specifically, the first stop portion 132 and the first limiting portion 162 are both located in front of the pivot protrusion 161, and the second stop portion 133 and the second limiting portion 163 are both located behind the pivot protrusion 161.

[0053] In some specific embodiments, the first stopping portion 132 is located in front of the first limiting portion 162 , and the second stopping portion 133 is located behind the second limiting portion 163 .

[0054] The return spring 3 is pivotally sleeved on the outer peripheral wall of the pivot protrusion 161. The return spring 3 is provided with a first driving arm 31 and a second driving arm 32, both of which are suitable for elastic deformation. The first driving arm 31 and the second driving arm 32 are spaced apart along the first direction of the shell 1. The first driving arm 31 is located in front of the pivot protrusion 161, and the second driving arm 32 is located behind the pivot protrusion 161. The first driving arm 31 is suitable for stopping with the first stop portion 132 and suitable for limiting cooperation with the first limiting portion 162. The second driving arm 32 is suitable for stopping with the second stop portion 133 and suitable for limiting cooperation with the second limiting portion 163. When the driving arm is bent, it is suitable for driving the corresponding stop portion to drive the dial 13 to reset.

[0055] Specifically, when the dial 13 is driven to rotate forward, the dial 13 drives the first stop portion 132 to rotate downward and drives the second stop portion 133 to rotate upward. The first stop portion 132 drives the first driving arm 31 to bend and deform downward, and the first driving arm 31 is separated from the first limiting portion 162. The second driving arm 32 is limited and cooperates with the second limiting portion 163, and the second driving arm 32 is separated from the second stop portion 133. After the operator's hand is separated from the dial 13, the first driving arm 31 drives the first stop portion 132 to drive the dial 13 to rotate backward to the initial position, thereby achieving the technical effect of resetting the dial 13, and after the dial 13 rotates to the initial position, the first driving arm 31 is limited and cooperates with the first limiting portion 162.

[0056] The limited engagement of the second driving arm 32 with the second limiting portion 163 prevents the first abutting portion 132 from driving the first driving arm 31 and causing the return spring 3 to rotate about the central axis of the pivot protrusion 161. This prevents the first abutting portion 132 from being unable to drive the first driving arm 31 to bend and deform, thereby preventing the first driving arm 31 from being unable to return the dial wheel 13 to its initial position. Furthermore, after the dial wheel 13 has returned to its initial position, the limited engagement of the first driving arm 31 with the first limiting portion 162 prevents the first driving arm 31 from excessively driving the dial wheel 13 to rotate backward, causing the dial wheel 13 to pass beyond its initial position, thereby improving the reliability of the dial wheel 13's return.

[0057] When the dial 13 is driven to rotate toward the rear, the dial 13 drives the second stop portion 133 to rotate downward and drives the first stop portion 132 to rotate upward. The second stop portion 133 drives the second driving arm 32 to bend and deform downward. The second driving arm 32 separates from the second limiting portion 163, and the first driving arm 31 is limited and matched with the first limiting portion 162, and the first driving arm 31 is separated from the first stop portion 132. After the operator's hand is separated from the dial 13, the second driving arm 32 drives the second stop portion 133 to drive the dial 13 to rotate forward to the initial position, and after the dial 13 rotates to the initial position, the second driving arm 32 is limited and matched with the second limiting portion 163.

[0058] Reference Figure 3In some embodiments of the present application, the side wall of the connecting base 16 is provided with a pivot protrusion 161 and a first pivot hole 164 is provided. The side wall of the connecting base 16 away from the pivot protrusion 161 is provided with a second pivot hole 165. The pivot protrusion 161, the first pivot hole 164 and the second pivot hole 165 are all coaxially arranged. The dial 13 includes a dial body 134 and a cover body 135. The side wall of the cover body 135 is provided with a first pivot shaft 1351. The first pivot shaft 1351 is pivotally connected to the first pivot hole 164. The side wall of the dial body 134 is provided with a second pivot hole 165. The pivot shaft 1341, the second pivot shaft 1341 is pivotally connected to the second pivot hole 165, and the dial body 134 and the cover body 135 are connected and matched. Specifically, along the second direction of the shell 1, the pivot protrusion 161 and the first pivot hole 164 are both located on the left side wall of the connecting seat 16, the second pivot hole 165 is located on the right side wall of the connecting seat 16, the cover body 135 is located on the left side of the connecting seat 16, and the dial body 134 is located on the right side of the connecting seat 16. That is to say, the connecting seat 16 is clamped between the dial body 134 and the cover body 135.

[0059] The pivotal connection between the first pivot shaft 1351 and the first pivot hole 164 and the pivotal connection between the second pivot shaft 1341 and the second pivot hole 165 can achieve the technical effect of pivotal connection between the dial 13 and the connecting base 16 .

[0060] In addition, the return spring 3 is clamped between the cover body 135 and the connecting seat 16, and the left side wall of the thumb wheel body 134 is provided with a first stop portion 132 and a second stop portion 133. The return spring 3 is limitedly engaged with the left side wall of the cover body 135 and the connecting seat 16, thereby preventing the return spring 3 from detaching from the connecting seat 16, and preventing the return spring 3 from being unable to drive the thumb wheel 13 to reset, thereby improving the working reliability of the locking thumb wheel 100.

[0061] Reference Figure 3 In some embodiments of the present application, a guide groove 1342 is provided on the side wall of the dial body 134 near the cover body 135, and a guide portion 1352 is provided on the end wall of the cover body 135 near the dial body 134. That is to say, along the second direction of the shell 1, the guide groove 1342 is located on the left side wall of the dial body 134, and the guide portion 1352 is located on the right side wall of the cover body 135, and the guide groove 1342 and the guide portion 1352 are guided and matched.

[0062] Through the guiding cooperation between the guide groove 1342 and the guide part 1352, when the dial body 134 and the cover body 135 are both installed on the connecting seat 16, the guide groove 1342 guides the cover body 135 through the guide part 1352, thereby reducing the difficulty of connecting the dial body 134 and the cover body 135, and further improving the installation efficiency of the dial body 134 and the cover body 135.

[0063] In some specific embodiments, the shape of the guide groove 1342 and the shape of the guide portion 1352 can both be configured as an arc.

[0064] Reference Figure 1 and Figure 4 In some embodiments of the present application, along the first direction of the shell 1, the front side wall or the rear side wall of the connecting seat 16 is provided with a snap-fitting protrusion 166, and the front side wall or the rear side wall of the shell 1 is provided with a snap-fitting hole 17, and the snap-fitting protrusion 166 and the snap-fitting hole 17 are snap-fitted.

[0065] It should be noted that when the snap-fit ​​protrusion 166 is arranged on the front side wall of the connecting seat 16, the snap-fit ​​hole 17 is arranged on the front side wall of the shell 1; when the snap-fit ​​protrusion 166 is arranged on the rear side wall of the connecting seat 16, the snap-fit ​​hole 17 is arranged on the rear side wall of the shell 1.

[0066] Specifically, along the height direction of the shell 1, the lower end wall of the shell 1 is provided with a mounting hole connected to the mounting space 11. After the dial 13 and the return spring 3 are both installed on the connecting seat 16, the connecting seat 16 extends into the shell 1 through the mounting hole and the snap-fitting protrusion 166 extends into the snap-fitting hole 17 to snap-fit ​​with the snap-fitting hole 17, thereby achieving the technical effect of fixedly connecting the connecting seat 16 and the shell 1.

[0067] When the connecting seat 16 needs to be disassembled, the operator drives the locking protrusion 166 to extend out of the locking hole 17 to unlock the connecting seat 16 and the shell 1, and then the operator takes out the connecting seat 16 through the mounting hole. It should be noted that the locking hole 17 is constructed as a through hole.

[0068] Reference Figure 4 In some embodiments of the present application, there are multiple snap-fit ​​protrusions 166 and multiple snap-fit ​​holes 17, and the multiple snap-fit ​​protrusions 166 and multiple snap-fit ​​holes 17 are spaced apart along the circumferential direction of the shell 1, and the multiple snap-fit ​​protrusions 166 and multiple snap-fit ​​holes 17 are arranged in a one-to-one correspondence.

[0069] By providing a plurality of snap-fit ​​protrusions 166 and a plurality of snap-fit ​​holes 17, when the connecting base 16 is installed in the housing 1, the plurality of snap-fit ​​protrusions 166 extend into the corresponding snap-fit ​​holes 17, thereby improving the connection reliability between the connecting base 16 and the housing 1, preventing the connecting base 16 from being separated from the housing 1, which would cause the operator to be unable to drive the dial 13 to rotate, and thereby improving the working reliability of locking the thumb dial 100.

[0070] Reference Figure 1 、 Figure 4 and Figure 5In some embodiments of the present application, the top wall of the shell 1 is provided with a third stop portion 18, and the outer peripheral wall of the shell 1 is provided with a clamping portion 19 opposite to the third stop portion 18, and the clamping portion 19 is located on the side of the third stop portion 18 close to the bottom wall of the shell 1, and the clamping portion 19 includes a first clamping arm 191 and a second clamping arm 192, both of which are suitable for elastic deformation, and the top walls of the first clamping arm 191 and the second clamping arm 192 are connected and cooperated, that is, along the height direction of the shell 1, the first clamping arm 191 is located above the second clamping arm 192, and the first clamping arm 191 and the second clamping arm 192 are both inclined toward the outside of the shell 1, and there is an angle between the first clamping arm 191 and the second clamping arm 192, which is suitable for fixing the shell 1 to the installation plane through the first clamping arm 191 and the third clamping portion 19.

[0071] Specifically, when the shell 1 is clamped to the mounting plane, the mounting plane first abuts against the side wall of the second clamping arm 192 away from the shell 1, and then the mounting plane drives the second clamping arm 192 to move toward the inside of the shell 1, and the second clamping arm 192 drives the first clamping arm 191 to move toward the inside of the shell 1. When the mounting plane is located above the connection between the first clamping arm 191 and the second clamping arm 192, the mounting plane separates from the second clamping arm 192, and driven by elastic force, the second clamping arm 192 drives the first clamping arm 191 to move toward the outside of the shell 1, and the side wall of the first clamping arm 191 away from the shell 1 abuts against and limits the mounting plane, and the lower end wall of the third abutting portion 18 abuts against and limits the mounting plane, thereby achieving the technical effect of fixing the shell 1 to the mounting plane.

[0072] In some specific embodiments, the installation plane may be a workbench of an excavator, etc.

[0073] Reference Figure 1 、 Figure 4 and Figure 5 In some embodiments of the present application, there are multiple clips 19, and the multiple clips 19 are arranged at intervals along the circumferential direction of the shell 1, and the shape of the third stop portion 18 is rectangular, and the multiple clips 19 are opposite to the third stop portion 18. By setting multiple clips 19, the multiple clips 19 can improve the connection reliability between the shell 1 and the installation plane, thereby preventing the shell 1 from being separated from the installation plane.

[0074] Reference Figure 1 and Figure 5In some embodiments of the present application, an avoidance hole 20 is provided on the outer wall of the shell 1, and the avoidance hole 20 is constructed as a through hole. An indicator light 21 is provided in the shell 1 opposite to the avoidance hole 20. The indicator light 21 is communicated with the controller. When the controller continuously outputs a control signal, the controller controls the indicator light 21 to light up. When the controller does not continuously output a control signal, the controller controls the indicator light 21 to go out.

[0075] The operator can determine whether the controller continues to output control signals by observing whether the indicator light 21 is on. The operator does not need to observe whether the excavator attachment continues to work to determine whether the controller continues to output control signals, thereby reducing the operator's workload and improving the user experience of locking the thumb wheel 100.

[0076] Furthermore, there can be two avoidance holes 20 and two indicator lights 21 , and the two avoidance holes 20 and the two indicator lights 21 are spaced apart along the first direction of the shell 1 , and the two avoidance holes 20 and the two indicator lights 21 are arranged in a one-to-one correspondence.

[0077] In some specific embodiments, the two indicator lights 21 are respectively a first indicator light 21 and a second indicator light 21. When the dial 13 rotates toward the front and the controller continuously outputs a control signal, the first indicator light 21 lights up and the second indicator light 21 goes out. When the dial 13 rotates toward the rear and the controller continuously outputs a control signal, the second indicator light 21 lights up and the first indicator light 21 goes out.

[0078] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A locking thumb wheel, characterized in that: include: A housing (1), wherein the housing (1) defines an installation space (11), wherein the installation space (11) forms an open opening (12) on the outer peripheral wall of the housing (1), wherein a thumbwheel (13) is pivotally mounted in the housing (1), wherein an end of the thumbwheel (13) passes through the open opening (12), wherein an angle detection member (14) and a touch sensing member (15) are provided in the housing (1), wherein the angle detection member (14) is used to detect the rotation angle of the thumbwheel (13), wherein the outer peripheral wall of the housing (1) is provided with a touch area (22) opposite to the touch sensing member (15), wherein the touch sensing member (15) is triggered when the touch area (22) is touched; a controller, wherein the angle detection element (14) and the touch sensing element (15) are both in communication connection with the controller, the controller being used to output or stop outputting a control signal according to a detection signal of the angle detection element (14), and the controller being further used to continuously output the control signal according to the detection signal of the touch sensing element (15) and the detection signal of the angle detection element (14); The dial wheel (13) is provided with a magnet (131), the angle detection member (14) is configured as a Hall sensor, the angle detection member (14) is opposite to the magnet (131), and the angle detection member (14) is triggered when the dial wheel (13) is dialed; The invention also includes: a reset spring (3); a connecting seat (16) is fixedly connected to the shell (1); a side wall of the connecting seat (16) is provided with a pivot protrusion (161), a first limiting portion (162) and a second limiting portion (163); the dial (13) is pivotally mounted on the connecting seat (16); the dial (13) is provided with a first stop portion (132) and a second stop portion (133); along the first direction of the shell (1), the first stop portion (132) and the first limiting portion (162) are located on one side of the pivot protrusion (161); the second stop portion (133) and the second limiting portion (163) are located on the other side of the pivot protrusion (161); the reset spring (3) is fixedly connected to the shell (1); a side wall of the connecting seat (16) is provided with a pivot protrusion (161), a first limiting portion (162) and a second limiting portion (163) are provided on the side of the pivot protrusion (161); The spring (3) is pivotally sleeved on the outer peripheral wall of the pivot protrusion (161), and the reset spring (3) is provided with a first driving arm (31) and a second driving arm (32) both of which are suitable for elastic deformation. The first driving arm (31) and the second driving arm (32) are spaced apart along the first direction of the shell (1). The first driving arm (31) is suitable for abutting against the first stop portion (132) and for being limitedly matched with the first limiting portion (162). The second driving arm (32) is suitable for abutting against the second stop portion (133) and for being limitedly matched with the second limiting portion (163). When the driving arm is bent, it is suitable for driving the corresponding stop portion to drive the dial wheel (13) to reset. The top wall of the shell (1) is provided with a third stop portion (18), the outer peripheral wall of the shell (1) is provided with a clamping portion (19) opposite to the third stop portion (18), and the clamping portion (19) is located on the side of the third stop portion (18) close to the bottom wall of the shell (1), and the clamping portion (19) includes a first clamping arm (191) and a second clamping arm (192) both suitable for elastic deformation, the top walls of the first clamping arm (191) and the second clamping arm (192) are connected and matched, and there is an angle between the first clamping arm (191) and the second clamping arm (192), which are suitable for fixing the shell (1) to the installation plane through the first clamping arm (191) and the third stop portion (18).

2. The locking thumb wheel according to claim 1, characterized in that: The connecting seat (16) is provided with a first pivot hole (164) on the side wall of the pivot protrusion (161), and a second pivot hole (165) is provided on the side wall of the connecting seat (16) away from the pivot protrusion (161). The pivot protrusion (161), the first pivot hole (164) and the second pivot hole (165) are all coaxially arranged. The thumbwheel (13) includes a thumbwheel body (134) and a cover body (135). The side wall of the cover body (135) is provided with a first pivot shaft (1351). The first pivot shaft ( 1351) is pivotally connected to the first pivot hole (164), the side wall of the thumbwheel body (134) is provided with a second pivot shaft (1341), the second pivot shaft (1341) is pivotally connected to the second pivot hole (165), the thumbwheel body (134) and the cover body (135) are connected and matched, the return spring (3) is clamped between the cover body (135) and the connecting seat (16), and the thumbwheel body (134) is provided with the first stop portion (132) and the second stop portion (133).

3. The locking thumb wheel according to claim 1, characterized in that: A guide groove (1342) is provided on the side wall of the thumbwheel body (134) close to the cover body (135), and a guide portion (1352) is provided on the end wall of the cover body (135) close to the thumbwheel body (134). The guide groove (1342) and the guide portion (1352) are in guiding cooperation.

4. The locking thumb wheel according to claim 1, characterized in that: The side wall of the connecting seat (16) is provided with a snap-fitting protrusion (166), and the side wall of the housing (1) is provided with a snap-fitting hole (17), and the snap-fitting protrusion (166) and the snap-fitting hole (17) are snap-fitted.

5. The locking thumb wheel according to claim 4, characterized in that: There are a plurality of the snap-fit ​​protrusions (166) and the snap-fit ​​holes (17), and the plurality of the snap-fit ​​protrusions (166) and the plurality of the snap-fit ​​holes (17) are spaced apart along the circumferential direction of the shell (1), and the plurality of the snap-fit ​​protrusions (166) and the plurality of the snap-fit ​​holes (17) are arranged in a one-to-one correspondence.

6. The locking thumb wheel according to claim 1, characterized in that: There are a plurality of the clamping portions (19), and the plurality of the clamping portions (19) are spaced apart and arranged along the circumferential direction of the housing (1).

7. The locking thumb wheel according to claim 1, characterized in that: An escape hole (20) is provided on the outer peripheral wall of the housing (1), and an indicator light (21) is provided in the housing (1) opposite to the escape hole (20). The indicator light (21) is communicatively connected with the controller. When the controller continuously outputs the control signal, the controller controls the indicator light (21) to light up, and when the controller does not continuously output the control signal, the controller controls the indicator light (21) to turn off.

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